Posted by WellWorn on September 21, 2014 at 11:19:35 from (75.193.57.173):
To short circuit any debate beforehand, I know there are some here for whom 6v works great, and others for whom it's gospel. If this was a restoration trailer queen piece it would be kept at 6 with a generator, but it isn't - it does farm nearly every day, and increasingly more work during dark hours.
My rule is that if it works, don't mess with it - unnecessary changes merely take more time. The 6v system did ok for me for several years (after some skilled tweaking), but now the reg has quit again, and as I've read here, new replacements are too often not good. Even though the battery holds a good charge and seems to have plenty of reserve capacity, it's 6 years old and needs to be topped off with a charger when working with front and rear lights because even with the regulator field locked in (with a toothpick for testing) the gen barely keep up with 2 1105 bulbs (about 6A each) and 1 1133 (4+A), even at full rpm. Yes, the belts are tight enough and the genny brushes and springs are good.
It's time to change. Why? This system was not designed for the way I need to work. I need a higher output that will keep up with additional warning (flasher) lights on tractor and soon on hitched equipment, even at a lower rpm, which means going 12v. If IH was still making the SA/140 in the 1980's, what do you think it would be equipped with? A generator? 6V? We're 20some years beyond even that.
I have a 3 wire Delco I'm making custom (exact belt alignment) brackets for today, and the whole works will be painted IH 2150 red. The wiring harness will be replaced, with lacing. IOW, it won't be cobbled. The ignition is taken care of (until I go electronic), but I'm still lacking a proper sized battery.
The BCI #1 6v battery is 9" long, 6 3/4 wide, and 8 3/4 high. I know they make an 8v battery the same size, but I can't seem to find a 12v battery that fills the battery box nicely. I tried a #35 (9.31x6.75x9 l/w/h), but the handle tabs make it too wide by about a quarter inch. Most other 12v batteries are at least a quarter inch too wide, or too tall, or both. I've seen a few SA/SC's with a battery sitting open where the battery box should be, or some with a cobbled tin box mounted somewhere else, but that's not the way I'd like to go. I'd like to know what others have used.
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